Nissan Juke (2014 year). Service Repair Manual — part 146

LUBRICANT

HA-21

< BASIC INSPECTION >

LUBRICANT

Description

INFOID:0000000009752195

MAINTENANCE OF LUBRICANT LEVEL

The compressor lubricant is circulating in the system together with the refrigerant. It is necessary to fill com-
pressor with lubricant when replacing A/C system parts or when a large amount of refrigerant leakage is
detected. It is important to always maintain lubricant level within the specified level. Otherwise, the following
conditions may occur.
• Insufficient lubricant amount: Stuck compressor
• Excessive lubricant amount: Insufficient cooling (caused by insufficient heat exchange)

Inspection

INFOID:0000000009752196

If a compressor is malfunctioning (internal noise, insufficient cooling), check the compressor oil.

COMPRESSOR OIL JUDGMENT

Remove the compressor. Refer to

HA-29, "COMPRESSOR : Removal and Installation"

Sample a compressor oil and judge on the figure.

Judgement result 1>>Replace compressor only.
Judgement result 2>>Replace compressor and liquid tank.

Perform Lubricant Return Operation

INFOID:0000000009752197

CAUTION:

If a large amount of refrigerant or lubricant leakage is detected, never perform lubricant return opera-
tion.

Start the engine and set to the following conditions.
• Engine speed: Idling to 1,200 rpm
• A/C switch: ON
• Fan (blower) speed: Maximum speed set
• Intake door position: Recirculation
• Temperature setting: Full cold

Perform lubricant return operation for approximately 10 minutes.

Stop the engine.

Lubricant return operation is complete.

Lubricant Adjusting Procedure for Components Replacement Except Compressor

INFOID:0000000009752198

Fill with lubricant for the amount that is calculated according to the following conditions.
Example: Lubricant amount to be added when replacing evaporator and liquid tank [m (US fl oz, Imp fl oz)] =
35 (1.2, 1.2) + 5 (0.2, 0.2) +

Name

: A/C system Oil Type R

JSIIA0927GB

Revision: 2013 October

2014 JUKE

HA-22

< BASIC INSPECTION >

LUBRICANT

Lubricant Adjusting Procedure for Compressor Replacement

INFOID:0000000009752199

Drain lubricant from removed compressor and measure lubricant amount.
1.

Drain lubricant from high-pressure port (A) and low-pres-
sure port (B) while rotating magnet clutch.

Measure total amount of lubricant that is drained from
removed compressor.

Drain lubricant from a new compressor that is calculated accord-
ing to the following conditions.

CAUTION:

If lubricant amount that is drained from removed compressor is less than 60 m (2.0 US fl oz, 2.1
Imp fl oz), perform calculation by setting “D” as 40 m (1.4 US fl oz, 1.4 Imp fl oz).

Example: Lubricant amount to be drained from a new compressor when replacing compressor and liquid
tank [m (US fl oz, Imp fl oz)] [D = 60 (2.0, 2.1),

= 5 (0.2, 0.2)]

120 (4.1, 4.2)

−

[60 (2.0, 2.1) + 20 (0.7, 0.7) + 5 (0.2, 0.2) + 5 (0.2, 0.2)] = 30 (1.0, 1.0)

Conditions

Lubricant amount to be added to A/C system

(US fl oz, Imp fl oz)

Replace evaporator

35 (1.2, 1.2)

Replace condenser

15 (0.5, 0.5)

Replace liquid tank

5 (0.2, 0.2)

Refrigerant leakage is detected

Large amount leakage

30 (1.0, 1.1)

Small amount leakage

—

Lubricant amount that is recycled together with refrigerant during recycle operation

JMIIA0940ZZ

Amount to be drained (A) [m (US fl oz, Imp fl oz)]
= F

−

(D + S + R +

)

: Lubricant amount that a new compressor
contains [120 (4.1, 4.2)]

: Lubricant amount that is drained from re-
moved compressor

: Lubricant amount that remains inside of re-
moved compressor [20 (0.7, 0.7)]

: Lubricant amount to be added according to
components that are removed except com-
pressor

: Lubricant amount that is recycled together
with refrigerant during recycle operation

Conditions

Lubricant amount to be added to A/C system

(US fl oz, Imp fl oz)

Replace evaporator

35 (1.2, 1.2)

Replace condenser

15 (0.5, 0.5)

Replace liquid tank

5 (0.2, 0.2)

JPIIA1455GB

Revision: 2013 October

2014 JUKE

LUBRICANT

HA-23

< BASIC INSPECTION >

Install compressor and check the operation.

Revision: 2013 October

2014 JUKE

HA-24

< BASIC INSPECTION >

PERFORMANCE TEST

PERFORMANCE TEST

Inspection

INFOID:0000000009752200

INSPECTION PROCEDURE

Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.

Start the engine, and set to the following condition.

Test condition

Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)

Check that test results of “recirculating-to-discharge air temperature” and “ambient air temperature-to-
operating pressure” are within the specified value.

When test results are within the specified value, inspection is complete.
If any of test result is out of the specified value, perform diagnosis by gauge pressure. Refer to

HA-25,

"Symptom Table"

RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE

AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE

Surrounding condition

Indoors or in the shade (in a well-ventilated place)

Vehicle condition

Door

Closed

Door glass

Full open

Hood

Open

Engine speed

Idle speed

A/C condition

Temperature control switch or dial

Full cold

A/C switch

Air outlet

VENT (ventilation)

Intake door position

Recirculation

Fan (blower) speed

Maximum speed set

Inside air (Recirculating air) at blower assembly inlet

Discharge air temperature from center ventilator

C (

Relative humidity

Air temperature

C (

50 – 60

25 (77)

8.8 – 11.3 (48 – 52)

30 (86)

13.2 – 16.2 (56 – 61)

35 (95)

18.5 – 22.0 (65 – 72)

60 – 70

25 (77)

11.3 – 13.8 (52 – 57)

30 (86)

16.2 – 19.3 (61 – 67)

35 (95)

22.0 – 25.5 (72 – 78)

Fresh air

High-pressure (Discharge side)

kPa (kg/cm

, psi)

Low-pressure (Suction side)

kPa (kg/cm

, psi)

Relative humidity

Air temperature

C (

50 – 70

25 (77)

1,090 – 1,330

(11.1 – 13.6, 158.1 – 192.9)

200 – 240

(2.0 – 2.4, 29.0 – 34.8)

30 (86)

1,320 – 1,610

(13.5 – 16.4, 191.4 – 233.5)

260 – 320

(2.7 – 3.3, 37.7 – 46.4)

35 (95)

1,510 – 1,850

(15.4 – 18.8, 219.0 – 268.3)

320 – 390

(3.3 – 4.0, 46.4 – 56.6)

40 (104)

1,820 – 2,230

(18.6 – 22.7, 263.9 – 323.4)

420 – 520

(4.3 – 5.3, 60.9 – 75.4)

Revision: 2013 October

2014 JUKE

REFRIGERATION SYSTEM SYMPTOMS

HA-25

< SYMPTOM DIAGNOSIS >

SYMPTOM DIAGNOSIS

REFRIGERATION SYSTEM SYMPTOMS

Trouble Diagnosis For Unusual Pressure

INFOID:0000000009752201

Diagnose using a manifold gauge whenever system’s high and/or low side pressure(s) is/are unusual. The
marker above the gauge scale in the following tables indicates the standard (usual) pressure range. Refer to
above table (Ambient air temperature-to-operating pressure table) since the standard (usual) pressure, how-
ever, differs from vehicle to vehicle.

Symptom Table

INFOID:0000000009752202

Gauge indication

Refrigerant cycle

Probable cause

Corrective action

Both high- and low-pressure sides
are too high.

The pressure returns to nor-
mal soon after sprinkling wa-
ter on condenser.

Overfilled refrigerant.

Collect all refrigerant, evacuate
refrigerant cycle again, and
then refill it with the specified
amount of refrigerant.

Air flow to condenser is insuf-
ficient.

Insufficient condenser cooling
performance.
• Poor fan rotation of radiator

and condenser.

• Improper installation of air

guide.

• Clogged or dirty condenser

fins.

• Repair or replace malfunc-

tioning parts.

• Clean and repair condenser

fins.

When compressor is stopped,
a high-pressure reading
quickly drops by approximate-

ly 196 kPa (2 kg/cm

, 28 psi).

It then gradually decreases.

Air mixed in refrigerant cycle.

Collect all refrigerant, evacuate
refrigerant cycle again, and
then refill it with the specified
amount of refrigerant.

• Low-pressure pipe is cooler

than the outlet of evapora-
tor.

• Low-pressure pipe is frost-

ed.

Expansion valve opened too
much (excessive flow of refrig-
erant).

Replace expansion valve.

High-pressure side is excessively
high and low-pressure side is too
low.

High-pressure pipe and upper
side of condenser become
hot, however, liquid tank does
not become so hot.

Clogged or crushed high-pres-
sure pipe located between
compressor and condenser.

Repair or replace the malfunc-
tioning parts.

High-pressure side is too low and
low-pressure side is too high.

• The readings of both sides

become equal soon after
compressor operation
stops.

• There is no temperature dif-

ference between high- and
low-pressure sides.

Malfunction in compressor sys-
tem (insufficient compressor
pressure operation).
• Damage or breakage of

valve.

• Malfunctioning gaskets.

Replace compressor.

AC359A

AC360A

AC356A

Revision: 2013 October

2014 JUKE

HA-26

< SYMPTOM DIAGNOSIS >

REFRIGERATION SYSTEM SYMPTOMS

Both high- and low-pressure sides
are too low.

• The area around evapora-

tor outlet does not become
cold.

• The area around evapora-

tor inlet becomes frosted.

Clogged expansion valve.
• Breakage of temperature

sensor.

• Clogging by foreign material.

Eliminate foreign material from
expansion valve, or replace it.

• There is a temperature dif-

ference between the areas
around outlet and inlet
pipes of liquid tank.

• Liquid tank becomes frost-

ed.

Malfunction in inner liquid tank
(clogged strainer).

Replace liquid tank.

Evaporator becomes frosted.

Clogged or crushed low-pres-
sure pipe.

Repair or replace malfunction-
ing parts.

Malfunction in intake sensor
(AUTOMATIC AIR CONDI-
TIONING) or thermo control
amp. (MANUAL AIR CONDI-
TIONING).

• Check intake sensor system.

Refer to

HAC-58, "Diagnosis

Procedure"

. (Automatic air

conditioning)

• Check thermo control amp.

system. Refer to

HAC-125,

"Diagnosis Procedure"

(Manual air conditioning)

There is a small temperature
difference between the high
and low pressure pipes for re-
frigerant cycle.

• Shortage of refrigerant.
• Leakage of refrigerant.

• Check for leakage.
• Collect all refrigerant, evacu-

ate refrigerant cycle again,
and then refill it with the spec-
ified amount of refrigerant.

Low-pressure side sometimes be-
comes negative.

• Sometimes the area

around evaporator outlet
does not become cold.

• Sometimes the area

around evaporator inlet is
frosted.

• Icing caused by the mixing of

water in cooler cycle.

• Deteriorated dryer in liquid

tank.

• Collect all refrigerant.
• Evacuate refrigerant cycle

completely, and then refill it
with the specified amount of
refrigerant. At this time, al-
ways replace liquid tank.

Gauge indication

Refrigerant cycle

Probable cause

Corrective action

AC353A

AC354A

Revision: 2013 October

2014 JUKE

NOISE

HA-27

< SYMPTOM DIAGNOSIS >

NOISE

Symptom Table

INFOID:0000000009752203

Symptom

Noise source

Probable cause

Corrective action

Unusual noise from compressor
when A/C is ON.

Inside of compressor

Wear, breakage, or clogging of foreign
material in inner parts.

Check compressor oil. Re-
fer to

HA-21, "Inspection"

Magnet clutch

Contact of clutch disc with pulley.

Check clearance between
clutch disc and pulley. Refer
to

HA-31, "Inspection"

Compressor body

Loosened compressor mounting bolts.

Check bolts for tightness.
Refer to

HA-28, "Exploded

View"

Unusual noise from cooler piping.

Cooler piping (pipe and
flexible hose)

Improper installation of clip and brack-
et.

Check the installation condi-
tion of the cooler piping. Re-
fer to

HA-32, "Exploded

View"

Unusual noise from expansion
valve when A/C is ON.

Expansion valve

Shortage of refrigerant.

• Check for leakage.
• Collect all refrigerant,

evacuate refrigerant cycle
again, and then refill it
with the specified amount
of refrigerant.

Wear, breakage, or clogging of foreign
material in inner parts.

Eliminate foreign material
from expansion valve, or re-
place it.

Unusual noise from belt.

—

Loosened belt

Check belt tension. Refer to

EM-19, "Inspection"

Internal compressor parts get locked

Replace compressor.

Revision: 2013 October

2014 JUKE

HA-28

< REMOVAL AND INSTALLATION >

COMPRESSOR

REMOVAL AND INSTALLATION

COMPRESSOR

Exploded View

INFOID:0000000009752204

REMOVAL

DISASSEMBLY

Type of bolt with flange

Compressor

: N·m (kg-m, ft-lb)

JMIIA1983GB

JSIIA1806GB

Compressor unit

Field coil

Snap ring

Pulley assembly

Snap ring

Shim

Clutch disc

: N·m (kg-m, ft-lb)

Revision: 2013 October

2014 JUKE

COMPRESSOR

HA-29

< REMOVAL AND INSTALLATION >

Type of bolt without flange

COMPRESSOR

COMPRESSOR : Removal and Installation

INFOID:0000000009752205

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to

HA-

21, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-19, "Recy-

cle Refrigerant"

Remove drive belt. Refer to

EM-18, "Removal and Installation"

Remove mounting bolts (A), and then disconnect low-pressure
flexible hose (1) and high-pressure flexible hose (2).

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.

JMIIA0802GB

Compressor unit

Field coil

Snap ring

Pulley assembly

Snap ring

Shim

Clutch disc

: N·m (kg-m, ft-lb)

: Vehicle front

JMIIA0947ZZ

Revision: 2013 October

2014 JUKE

HA-30

< REMOVAL AND INSTALLATION >

COMPRESSOR

Disconnect magnet clutch harness connector.

Remove mounting bolts. Pull out compressor in the direction
indicated by an arrow as shown in the figure to remove.

CAUTION:

Be careful not to contact with and damage surrounding
parts when removing compressor from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Perform lubricant adjusting procedure before installing new compressor. Refer to

HA-22, "Lubricant

Adjusting Procedure for Compressor Replacement"

• Check for leakages when recharging refrigerant. Refer to

HA-17, "Leak Test"

• Check tension of the drive belt after installing compressor. Refer to

EM-19, "Inspection"

MAGNET CLUTCH

MAGNET CLUTCH : Removal and Installation of Compressor Clutch

INFOID:0000000009752206

REMOVAL

Overhaul

Fix clutch disc.

Remove center bolt, and then remove clutch disc.

Remove snap ring using external snap ring pliers.

Position center pulley puller on the end of the drive shaft, and remove pulley assembly using any commer-
cially available pulley puller.
To prevent pulley groove from being deformed, puller claws should be positioned into the edge of the pul-
ley assembly.

Disconnect harness connector from compressor unit.

Remove snap ring using external snap ring pliers, and then remove field coil.

INSTALLATION

: Vehicle front

JMIIA0948ZZ

JMIIA1038ZZ

Revision: 2013 October

2014 JUKE

COMPRESSOR

HA-31

< REMOVAL AND INSTALLATION >

Install field coil (1).
Be sure to align the coil’s pin (2) with the hole in the compres-
sor’s front head.

Install field coil harness clip.

Install pulley assembly (1) using pulley installer (SST: J-41260)
(A) and a hand press, and then install snap ring (2) using snap
ring pliers.

Install clutch disc on drive shaft together with original shim(s). Press clutch disc down by hand.

Tighten center bolt to the specified torque while fixing clutch disc not to rotate.
After tightening the bolt, check that the pulley rotates smoothly.

Break-in Operation

When replacing compressor clutch assembly, always perform the break-in operation by engaging and disen-
gaging the clutch approximately 30-times. Break-in operation increases the level of transmitted torque.

Inspection

INFOID:0000000009752207

CHECK DISC TO PULLEY CLEARANCE

Check the clearance (B) between pulley assembly (1) and clutch
disc (2) along the entire periphery with a feeler gauge (A).

CAUTION:

Replace compressor if the specified clearance is not obtained,
replace adjusting spacer and readjust.

JMIIA0575ZZ

JMIIA0576ZZ

Clearance

: Refer to

HA-48, "Compressor"

JPIIA1566ZZ

Revision: 2013 October

2014 JUKE

HA-32

< REMOVAL AND INSTALLATION >

COOLER PIPE AND HOSE

COOLER PIPE AND HOSE

Exploded View

INFOID:0000000009752208

HIGH-PRESSURE FLEXIBLE HOSE

HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000009752209

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to

HA-

21, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-19, "Recy-

cle Refrigerant"

Remove bumper fascia. Refer to

EXT-15, "Removal and Installation"

A/C unit assembly

O-ring

High-pressure pipe

O-ring

Low-pressure flexible hose

High-pressure flexible hose

O-ring

Condenser

Compressor

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

: Indicates that the part is connected at points with same symbol in actual vehicle.

JMIIA0942GB

Revision: 2013 October

2014 JUKE

COOLER PIPE AND HOSE

HA-33

< REMOVAL AND INSTALLATION >

Remove mounting bolt (A), and then disconnect high-pressure
flexible hose.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with
suitable material such as vinyl tape to avoid the entry of air.

Remove mounting bolt (A), and then disconnect high-pressure
flexible hose.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.

Remove high-pressure flexible hose from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to

HA-17, "Leak Test"

LOW-PRESSURE FLEXIBLE HOSE

LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000009752210

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to

HA-

21, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-19, "Recy-

cle Refrigerant"

Remove bumper fascia. Refer to

EXT-15, "Removal and Installation"

Remove cowl top and cowl top extension. Refer to

EXT-26, "Removal and Installation"

Remove mounting nut, and then move lower dash insulator to
secure work space.

: Vehicle front

JMIIA0949ZZ

: Vehicle front

JMIIA0950ZZ

: Nut

: Vehicle front

JMIIA0973ZZ

Revision: 2013 October

2014 JUKE

HA-34

< REMOVAL AND INSTALLATION >

COOLER PIPE AND HOSE

Remove mounting bolt (A), and then disconnect low-pressure
flexible hose (1) and high-pressure pipe (2) from expansion
valve. Refer to

HA-46, "EXPANSION VALVE : Removal and

Installation"

CAUTION:

Cap or wrap the joint of the A/C piping and expansion valve
with suitable material such as vinyl tape to avoid the entry
of air.

Remove mounting bolt (A) of low-pressure flexible hose front side (1) and mounting nut (B) of low-pres-
sure flexible hose rear side (2).

Remove ground wire mounting bolt (A), and then move ground
wire (1) to secure work space.

Remove mounting bolt (A), and then disconnect low-pressure
flexible hose.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.

Remove low-pressure flexible hose from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to

HA-17, "Leak Test"

HIGH-PRESSURE PIPE

: Vehicle front

JMIIA0974ZZ

: Vehicle front

JMIIA0972ZZ

: Vehicle front

JMIIA0977ZZ

: Vehicle front

JMIIA0971ZZ

Revision: 2013 October

2014 JUKE

COOLER PIPE AND HOSE

HA-35

< REMOVAL AND INSTALLATION >

HIGH-PRESSURE PIPE : Removal and Installation

INFOID:0000000009752211

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to

HA-

21, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-19, "Recy-

cle Refrigerant"

Remove low-pressure flexible hose. Refer to

HA-33, "LOW-PRESSURE FLEXIBLE HOSE : Removal and

Installation"

Remove mounting bolt (A), and then disconnect high-pressure
pipe (1).

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with
suitable material such as vinyl tape to avoid the entry of air.

Remove high-pressure pipe (1) fixing clips (B), and then remove
high-pressure pipe from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to

HA-17, "Leak Test"

: Vehicle front

JMIIA0975ZZ

: Vehicle front

JMIIA0976ZZ

Revision: 2013 October

2014 JUKE

HA-36

< REMOVAL AND INSTALLATION >

CONDENSER

CONDENSER

Exploded View

INFOID:0000000009752212

CONDENSER

CONDENSER : Removal and Installation

INFOID:0000000009752213

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to

HA-

21, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-19, "Recy-

cle Refrigerant"

Remove bumper fascia. Refer to

EXT-15, "Removal and Installation"

Remove air guide LH. Refer to

DLK-134, "Exploded View"

Disconnect refrigerant pressure sensor harness connector.

Condenser